PT72364A - NOVEL PROCESS FOR OBTAINING A CRYSTALLINE SILICO ALUMINATE OF TYPE A AND IN PARTICULAR OF TYPE 4A WITH HIGH WATER RETENTION - Google Patents
NOVEL PROCESS FOR OBTAINING A CRYSTALLINE SILICO ALUMINATE OF TYPE A AND IN PARTICULAR OF TYPE 4A WITH HIGH WATER RETENTIONInfo
- Publication number
- PT72364A PT72364A PT72364A PT7236481A PT72364A PT 72364 A PT72364 A PT 72364A PT 72364 A PT72364 A PT 72364A PT 7236481 A PT7236481 A PT 7236481A PT 72364 A PT72364 A PT 72364A
- Authority
- PT
- Portugal
- Prior art keywords
- type
- temperature
- high water
- maintained
- obtaining
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
- C01B33/28—Base exchange silicates, e.g. zeolites
- C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
- C01B33/2815—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L)
- C01B33/2823—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L) from aqueous solutions of an alkali metal aluminate and an alkali metal silicate excluding any other source of alumina or silica
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Catalysts (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Silicon Compounds (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Saccharide Compounds (AREA)
Abstract
1. A process for producing a zeolite of type A with a high water absorption capacity, with an SiO2 / AI2 O3 molar ratio higher than 1.85 and advantageously at least equal to 2, characterized in that : (a) a mixture of solutions of sodium aluminate and silicate is made from a solution of aluminate which is advantageously cooled at from -10 to +10 C, and a solution of silicate, at a temperature such that the temperature of the resulting medium is substantially lower than the ambient temperature, with sufficient agitation being maintained to permit the formation of a homogenous solution having the appearance of a gel and with the molar ratio in the reaction medium being maintained at a value which is at least equal to 1.85 ; (b) the temperature of the reaction medium is raised to a value in the range of from 60 to 100 C ; (c) the medium is maintained at that temperature for a sufficient period of time of from 0.2 to 5 h, so as to cause crystallisation and redispersion of the silicoaluminate in the form of suspension of crystals in the liquid phase, and (d) the resulting crystals are separated and dried.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8001046A FR2474014A1 (en) | 1980-01-18 | 1980-01-18 | NOVEL PROCESS FOR OBTAINING A TYPE A CRYSTALLINE SILICO-ALUMINATE WITH HIGH WATER RETENTION, AND IN PARTICULAR TYPE 4A, AND PRODUCT SO OBTAINED |
Publications (2)
Publication Number | Publication Date |
---|---|
PT72364A true PT72364A (en) | 1981-02-01 |
PT72364B PT72364B (en) | 1981-12-18 |
Family
ID=9237631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT72364A PT72364B (en) | 1980-01-18 | 1981-01-16 | NEW PROCESS FOR OBTAINING A CRYSTAL SILICO-ALUMINATE DETYPE A AND IN PARTICULAR TYPE 4A WITH HIGH WATER RETENTION |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0032854B1 (en) |
JP (1) | JPS56140024A (en) |
AT (1) | ATE4695T1 (en) |
BR (1) | BR8100257A (en) |
CA (1) | CA1153749A (en) |
DE (1) | DE3160890D1 (en) |
DK (1) | DK18981A (en) |
ES (1) | ES498553A0 (en) |
FI (1) | FI810132L (en) |
FR (1) | FR2474014A1 (en) |
NO (1) | NO810143L (en) |
PT (1) | PT72364B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2161109B1 (en) * | 1998-05-29 | 2002-06-16 | Consejo Superior Investigacion | Production of zeolites from waste, for use in detergents consists of mixing of pickling liquors with caustic soda and silicate for nucleation and crystallisation |
JP4921097B2 (en) * | 2006-09-29 | 2012-04-18 | ダイコク電機株式会社 | Amusement machine equipment |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3674426A (en) * | 1966-09-28 | 1972-07-04 | Asahi Denka Kogyo Kk | Process for producing crystalline zeolite a |
FR1536947A (en) * | 1967-03-01 | 1968-09-02 | Mines Domaniales De Potasse | Synthetic zeolites and their manufacturing process |
FR2376074A1 (en) * | 1976-12-30 | 1978-07-28 | Rhone Poulenc Ind | Silico-aluminate(s) esp. for use in washing powders - with higher cation exchange power and less incrustation |
FR2384716A2 (en) * | 1977-03-25 | 1978-10-20 | Rhone Poulenc Ind | Silico-aluminate(s) esp. for use in washing powders - with higher cation exchange power and less incrustation |
GB2005653A (en) * | 1977-10-12 | 1979-04-25 | Pq Corp | Preparing zeolites |
-
1980
- 1980-01-18 FR FR8001046A patent/FR2474014A1/en active Granted
-
1981
- 1981-01-08 DE DE8181400018T patent/DE3160890D1/en not_active Expired
- 1981-01-08 AT AT81400018T patent/ATE4695T1/en active
- 1981-01-08 EP EP81400018A patent/EP0032854B1/en not_active Expired
- 1981-01-16 ES ES498553A patent/ES498553A0/en active Granted
- 1981-01-16 DK DK18981A patent/DK18981A/en not_active Application Discontinuation
- 1981-01-16 FI FI810132A patent/FI810132L/en not_active Application Discontinuation
- 1981-01-16 BR BR8100257A patent/BR8100257A/en unknown
- 1981-01-16 JP JP490481A patent/JPS56140024A/en active Pending
- 1981-01-16 NO NO810143A patent/NO810143L/en unknown
- 1981-01-16 CA CA000368726A patent/CA1153749A/en not_active Expired
- 1981-01-16 PT PT72364A patent/PT72364B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS56140024A (en) | 1981-11-02 |
ES8201105A1 (en) | 1981-12-01 |
DE3160890D1 (en) | 1983-10-27 |
FI810132L (en) | 1981-07-19 |
ES498553A0 (en) | 1981-12-01 |
NO810143L (en) | 1981-07-20 |
PT72364B (en) | 1981-12-18 |
ATE4695T1 (en) | 1983-10-15 |
FR2474014A1 (en) | 1981-07-24 |
FR2474014B1 (en) | 1981-12-11 |
DK18981A (en) | 1981-07-19 |
EP0032854B1 (en) | 1983-09-21 |
CA1153749A (en) | 1983-09-13 |
EP0032854A1 (en) | 1981-07-29 |
BR8100257A (en) | 1981-08-04 |
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Legal Events
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PC3A | Transfer or assignment |
Free format text: 930526 LAVIOSA RHONE-POULENC IT |
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PC3A | Transfer or assignment |
Free format text: 951213 ENICHEM AUGUSTA INDUSTRIALE S.R.L. IT |
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PD3A | Change of proprietorship | ||
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20000630 |